By Editor , 28 September 2026

Ottawa, ON -- Claigan Environmental will run two webinars on October 7, 2026, to brief manufacturers on incoming 2028 Proposition 65 warning rules that eliminate generic labels and require exact chemical identification.

Generic Prop 65 warnings lose legal validity starting in 2028

Under the new requirements, short-form warnings must name a specific substance rather than relying on the current blanket language many companies have used for years. Claigan states that identifying the correct chemical will no longer be a routine formality.